Global Patent Index - EP 1933513 A1

EP 1933513 A1 20080618 - Method and transmitter for broadcast transmission with spatial spreading in a multi-antenna communication system

Title (en)

Method and transmitter for broadcast transmission with spatial spreading in a multi-antenna communication system

Title (de)

Verfahren und Sender zur Broadcast-Übertragung mit räumlicher Spreizung in einem Mehrantennen-Kommunikationssystem

Title (fr)

Procédé et émetteur pour la transmission diffusée avec étalement spatial dans un système de télécommunication à antennes multiples

Publication

EP 1933513 A1 20080618 (EN)

Application

EP 08153985 A 20041213

Priority

  • EP 04813896 A 20041213
  • US 53086003 P 20031217
  • US 982404 A 20041209

Abstract (en)

Method and transmitter for broadcasting data from a wireless multi-antenna transmitter, the method comprising: selecting at least two steering matrices for transmission of at least one block of data symbols obtained from at least one block of data, wherein the at least two steering matrices are provided to randomize an effective channel observed by each of a plurality of receiving entities for the at least one block of data symbols; performing spatial processing on the at least one block of data symbols with each of the at least two steering matrices to obtain a plurality of sequences of transmit symbols; and broadcasting one or more signals comprising the plurality of sequences of transmit symbols from a plurality of transmit antennas.

IPC 8 full level

H04B 7/04 (2006.01); H04B 7/02 (2006.01); H04B 7/06 (2006.01); H04L 1/02 (2006.01); H04L 25/02 (2006.01)

CPC (source: EP)

H04B 7/043 (2013.01); H04B 7/0615 (2013.01); H04L 25/0204 (2013.01); H04L 25/0242 (2013.01)

Citation (applicant)

  • T.L. MARZETTA ET AL.: "Structured Unitary Space-Time Autocoding Constellations", IEEE TRANSACTION ON INFORMATION THEORY, vol. 48, no. 4, April 2002 (2002-04-01), XP011074435
  • HOCHWALD ET AL.: "Systematic Design of Unitary Space-Time Constellations", IEEE TRANSACTION ON INFORMATION THEORY, vol. 46, no. 6, September 2000 (2000-09-01)

Citation (search report)

  • [XY] US 6198775 B1 20010306 - KHAYRALLAH ALI S [US], et al
  • [YA] US 2003016637 A1 20030123 - KHAYRALLAH ALI S [US], et al
  • [A] US 2002172264 A1 20021121 - WIBERG NICLAS [SE], et al
  • [XY] AGUSTIN A ET AL: "LDC construction with a defined structure [MIMO linear dispersive codes]", VEHICULAR TECHNOLOGY CONFERENCE, 2003. VTC 2003-FALL. 2003 IEEE 58TH ORLANDO, FL, USA 6-9 OCT. 2003, PISCATAWAY, NJ, USA,IEEE, US, 6 October 2003 (2003-10-06), pages 433 - 437Vol1, XP010700754, ISBN: 0-7803-7954-3

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR LV MK RS

DOCDB simple family (publication)

EP 1933513 A1 20080618; EP 1933513 B1 20140618; PL 1933513 T3 20141031

DOCDB simple family (application)

EP 08153985 A 20041213; PL 08153985 T 20041213